Malicious PDF — malware analysis report

Static analysis result for SHA-256 a17d9b7513f619e1…

MALICIOUS

PDF

12.7 KB Created: 2019-04-30 03:26:19 +01:00 Authoring application: mPDF 5.7
MD5: eb8542991aade5ec8f6c41ba01f98898 SHA-1: 4d337919a69b5db515b620a97193f8f7eaa9a995 SHA-256: a17d9b7513f619e125f235873257d191180f090c8b7890116af8d278af2cf899
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, which suggests an attempt to manipulate search engine results or distribute content. While the specific URLs are currently marked as benign, the sheer volume and the nature of the heuristic firing indicate a malicious intent. No scripts were extracted, and the document body was unreadable, limiting further analysis of the exact payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8780

Heuristics 2

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://loaminoo.linkpc.net/6095093097092090/Judith-Kerr-s-Creatures-by-Judith-Kerr.pdf
    • http://loaminoo.linkpc.net/9099093094098/The-Tiger-Who-Came-to-Tea-by-Judith-Kerr.pdf
    • http://loaminoo.linkpc.net/3091096097090095/Mog-and-Bunny-by-Judith-Kerr.pdf
    • http://loaminoo.linkpc.net/1091094091097092092/Quando-Hitler-me-Roubou-o-Coelho-Cor-de-Rosa-by-Judith-Kerr.pdf
    • http://loaminoo.linkpc.net/9094092095097093/Als-Hitler-das-rosa-Kaninchen-stahl-Band-1-3-by-Judith-Kerr.pdf
    • http://loaminoo.linkpc.net/5093092098097096/Crocodile-s-Sore-Tooth-Crocodile-s-Sore-Tooth-by-Fundisile-Gwazube.pdf
    • http://loaminoo.linkpc.net/8090095092098094/The-Crocodile-by-Vincent-Eri.pdf
    • http://loaminoo.linkpc.net/8090095092098098/The-crocodile-nest-by-Des-Hunt.pdf
    • http://loaminoo.linkpc.net/4096090091093097/Crocodile-Undie-by-A-J-Llewellyn.pdf
    • http://loaminoo.linkpc.net/8090095093094093/Crocodile-by-Mick-Inkpen.pdf
    • http://loaminoo.linkpc.net/1093098097093097/Notes-of-a-Crocodile-by-Qiu-Miaojin.pdf
    • http://loaminoo.linkpc.net/4099098098096098/Crocodile-Beat-by-Gail-Jorgensen.pdf
    • http://loaminoo.linkpc.net/1094095095093097/Inside-the-Crocodile-by-Trish-Nicholson.pdf
    • http://loaminoo.linkpc.net/8090095093091092/The-Crocodile-Fury-by-Beth-Yahp.pdf
    • http://loaminoo.linkpc.net/8090095093090093/Crocodile-Burning-by-Michael-Williams.pdf
    • http://loaminoo.linkpc.net/8097093096092/The-Enormous-Crocodile-by-Roald-Dahl.pdf
    • http://loaminoo.linkpc.net/8090095093092099/Daffodil-Crocodile-by-Emily-Jenkins.pdf
    • http://loaminoo.linkpc.net/8090095092093090/The-Clumsy-Crocodile-by-Felicity-Everett.pdf
    • http://loaminoo.linkpc.net/8090095091097091/Solomon-Crocodile-by-Catherine-Rayner.pdf
    • http://loaminoo.linkpc.net/1092093098093094/The-Enormous-Crocodile-by-Roald-Dahl.pdf
    • http://loaminoo.linkpc.net/4099098098096098/Crocodile-Beat-by-Gail-Jorgensen.pd

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